Question

A coil of 50 turns is wound on an ivory frame 3 cm x 6 cm which rotates in a inagnetic filed B = 2 webm what will be the torque acting on it, if a current of 5 amperes passes through it and the plane of the coil makes an angle of 45°C with of the wings of the aero plane. the field.​

Answer 1

Answer: 9/10(√2)

Explanation:

torque is the vector cross product of external magnetic field and magnetic moment of coil , formula for magnetic moment is NiA, N is no of turns , A is area and i is current through coil.

T= 50 x 5 x 3/100 x 6/100 [2] x sin[45]

= 9/10√2